Blar i NTNU Open på forfatter "Xu, Jianbin"
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Dynamic strain ageing in an AlMg alloy at different strain rates and temperatures: Experiments and constitutive modelling
Xu, Jianbin; Holmedal, Bjørn; Hopperstad, Odd Sture; Manik, Tomas; Marthinsen, Knut (Peer reviewed; Journal article, 2022)Uniaxial tension tests at strain rates from to and temperatures from 298 to 418 K are performed to study the dynamic strain ageing (DSA) of an AA5182-O sheet. Digital image correlation (DIC) is used to obtain the stress-strain ... -
An experimental and numerical study of the Portevin-Le Chatelier effect in an AlMg alloy
Xu, Jianbin (Doctoral theses at NTNU;2021:238, Doctoral thesis, 2021) -
Experimental Characterization and Modelling of the PLC Effect in an AlMg-Alloy
Xu, Jianbin; Holmedal, Bjørn; Hopperstad, Odd Sture; Marthinsen, Knut (Peer reviewed; Journal article, 2021)In the present work, uniaxial tension tests have been conducted to study the mechanical response of a commercial Al4.5wt%Mg alloy (AA5182). The measurements range from the strain rate of 10-4 to 100 s-1 at room temperature. ... -
A machine learning enabled ultra-fine grain design strategy of Mg–Mn-based alloys
Mi, Xiaoxi; Jing, Xuerui; Wang, Hailian; Xu, Jianbin; She, Jia; Tang, Aitao; Holmedal, Bjørn; Pan, Fusheng (Peer reviewed; Journal article, 2023)Grain size is the critical characteristic of ultra-fine grain Magnesium (Mg), which is a concrete representation of the whole heat deformation procedure. In this paper, a design strategy was proposed to quantitatively ... -
On the spatio-temporal characteristics of the Portevin-Le Chatelier effect in aluminium alloy AA5182: An experimental and numerical study
Xu, Jianbin; Hopperstad, Odd Sture; Holmedal, Bjørn; Berstad, Torodd; Manik, Tomas; Marthinsen, Knut (Peer reviewed; Journal article, 2023)The Portevin–Le Chatelier (PLC) effect and its spatio-temporal characteristics in the aluminium alloy AA5182 are studied experimentally and numerically in the current work. An extremely high-frequency camera (up to 1000 ... -
A simple method enabling efficient quantitative analysis of the Portevin–Le Chatelier band characteristics
Xu, Jianbin; Liu, Lei; Hopperstad, Odd Sture; Holmedal, Bjørn; Manik, Tomas; Marthinsen, Knut (Peer reviewed; Journal article, 2022)Localized deformation bands are often observed in materials exhibiting the Portevin–Le Chatelier (PLC) effect. However, efficient quantitative analysis of PLC bands remains challenging. A novel method is thus proposed in ... -
Work hardening and Portevin-Le Chatelier (PLC) effect in aluminium alloys
Sigvaldsen, Øystein Remmem (Master thesis, 2019)Bruk av enkelte Al-Mg-legeringer kan føre til utfordringer. Innenfor visse tøyningshastigheter og temperaturer kan det oppstå overflatefeil og tap av mekaniske egenskaper. Dette på grunn av Portevin-Le Chatelier-effekten. ... -
Work hardening and Portevin-Le Chatelier (PLC) effect in aluminium alloys
Sigvaldsen, Øystein Remmem (Master thesis, 2018)Mechanical testing and microstructure characterization of an AA5182 alloy is performed for use as input for calibration and further development of models for work hardening and dynamic strain aging effects. The experimental ...